Home / 81,586.31-122,357.18-22,407.91

Finding the Fourth Proportional to 81,586.31, 122,357.18 and 22,407.91

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Solution

The fourth proportional to 81,586.31, 122,357.18 and 22,407.91 is: 33,605.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,586.31 : 122,357.18 = 22,407.91 : x
  2. Step 2: Convert to fraction form
    81,586.31/122,357.18 = 22,407.91/x
  3. Step 3: Cross multiply
    81,586.31x = 122,357.18 × 22,407.91
  4. Step 4: Simplify right side
    81,586.31x = 2,741,768,427.42
  5. Step 5: Solve for x
    x = 2,741,768,427.42/81,586.31
  6. Step 6: Final answer
    x = 33,605.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.